P_Buttons.h

00001 /***************************************************************************
00002 *cr 
00003 *cr (C) Copyright 1995-2019 The Board of Trustees of the 
00004 *cr University of Illinois 
00005 *cr All Rights Reserved 
00006 *cr 
00007 ***************************************************************************/
00008 
00009 /***************************************************************************
00010 * RCS INFORMATION:
00011 *
00012 * $RCSfile: P_Buttons.h,v $
00013 * $Author: johns $ $Locker: $ $State: Exp $
00014 * $Revision: 1.25 $ $Date: 2019年01月17日 21:21:00 $
00015 *
00016 ***************************************************************************
00017 * DESCRIPTION:
00018 * This is Paul's new Tracker code -- pgrayson@ks.uiuc.edu
00019 *
00020 * A Buttons is a representation for a set of n boolean inputs. This
00021 * fairly abstract class should be subclassed to make Buttons objects
00022 * that actually know how to get their buttons. This is somewhat
00023 * parallel to the Tracker object, compare them!
00024 *
00025 ***************************************************************************/
00026 
00027 #ifndef P_BUTTONS_H
00028 #define P_BUTTONS_H
00029 
00030 #define MAX_BUTTONS 100
00031 
00032 #include "ResizeArray.h"
00033 #include "P_SensorConfig.h"
00034 
00067 
00068 
00069 
00070 
00071 class Buttons {
00072 protected: 
00073 ResizeArray<int> used; 
00074 int stat[MAX_BUTTONS]; 
00075 
00077 virtual int do_start(const SensorConfig *) { return 1; }
00078 
00079 public:
00080 Buttons() {}
00081 virtual ~Buttons() {}
00082 
00083 virtual const char *device_name() const = 0;
00084 virtual Buttons *clone() = 0;
00085 
00086 int start(const SensorConfig *);
00087 
00088 virtual void update() = 0;
00089 inline int state(int num) {
00090 if(num>used.num() || num<0) return 0;
00091 return stat[used[num]];
00092 }
00093 };
00094 
00095 #endif
00096